package com.ruoyi.common.utils.file;

import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.ObjectMetadata;
import com.aliyun.oss.model.PutObjectResult;
import lombok.Data;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;

import java.io.*;
import java.net.URL;
import java.util.Date;
import java.util.Random;

/**
 * 描述:
 * 时间:2019年12月26日
 *
 * @author :杨朋
 */
@Data
public class OSSClientUtil {

    Log log = LogFactory.getLog(OSSClientUtil.class);

    // 文件存储目录
    private String filedir = "file/";

//    private static String endpoint = "http://oss-cn-hangzhou.aliyuncs.com";
//    private static String accessKeyId = "LTAINZEObk4ghSKN";
//    private static String accessKeySecret = "X9VlES5Kbp5Q9kEtHc29SNY4d3dpBz";
//    private static String bucketName = "miaohuojie";

    private static String endpoint = "http://oss-cn-shenzhen.aliyuncs.com";
    private static String accessKeyId = "LTAI5tP9VRmczdpzMsxARpWM";
    private static String accessKeySecret = "dwF2W3kqk8BOUsRC8V57nVmvJGYvsl";
    private static String bucketName = "pay-oss-pay";

//    private  String endpoint;
//    private  String accessKeyId;
//    private  String accessKeySecret ;
//    private  String bucketName ;

    private OSSClient ossClient;

    public OSSClientUtil(String endpoint, String bucketName, String accessKeyId, String accessKeySecret ) {
        ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
    }

    public OSSClientUtil() {
        ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
    }

    /**
     * 初始化
     */
    public void init() {
        ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
    }

    /**
     * 销毁
     */
    public void destory() {
        ossClient.shutdown();
    }

    /**
     * 上传图片
     *
     * @param url
     */
    public void uploadImg2Oss(String url, String key) throws Exception {
        File fileOnServer = new File(url);
        FileInputStream fin;
        try {
            fin = new FileInputStream(fileOnServer);
            this.uploadFile2OSS(fin, key);
        } catch (FileNotFoundException e) {
            throw new Exception("图片上传失败");
        }
    }

    public String uploadImg2Oss(MultipartFile file) throws Exception {
//			if (file.getSize() > 1024 * 1024 * 10) {
//				throw new Exception("上传图片大小不能超过10M！");
//			}
        String originalFilename = file.getOriginalFilename();
        String substring = originalFilename.substring(originalFilename.lastIndexOf(".")).toLowerCase();
        Random random = new Random();
        String name = random.nextInt(10000) + System.currentTimeMillis() + substring;
        try {
            InputStream inputStream = file.getInputStream();
            this.uploadFile2OSS(inputStream, name);
            return name;
        } catch (Exception e) {
            throw new Exception("图片上传失败");
        }
    }

    /**
     * 获得图片路径
     *
     * @param fileUrl
     * @return
     */
    public String getImgUrl(String fileUrl) {
//			if (fileUrl != null) {
//				return "http://miaohuojie.oss-cn-hangzhou.aliyuncs.com/data/" + fileUrl;
//			}

        if (!StringUtils.isEmpty(fileUrl)) {
            String[] split = fileUrl.split("/");
            return this.getUrl(this.filedir + split[split.length - 1]);
        }
        return null;
    }

    /**
     * 上传到OSS服务器 如果同名文件会覆盖服务器上的
     *
     * @param instream 文件流
     * @param fileName 文件名称 包括后缀名
     * @return 出错返回"" ,唯一MD5数字签名
     */
    public String uploadFile2OSS(InputStream instream, String fileName) {
        String ret = "";
        try {
            // 创建上传Object的Metadata
            ObjectMetadata objectMetadata = new ObjectMetadata();
            objectMetadata.setContentLength(instream.available());
            objectMetadata.setCacheControl("no-cache");
            objectMetadata.setHeader("Pragma", "no-cache");
            // objectMetadata.setContentType(getcontentType(fileName.substring(fileName.lastIndexOf("."))));
            // objectMetadata.setContentDisposition("inline;filename=" +
            // fileName);
            // 上传文件
            PutObjectResult putResult = ossClient.putObject(bucketName, filedir + fileName, instream, objectMetadata);
            ret = putResult.getETag();
        } catch (IOException e) {
            log.error(e.getMessage(), e);
        } finally {
            try {
                if (instream != null) {
                    instream.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return ret;
    }

    /**
     * Description: 判断OSS服务文件上传时文件的contentType
     *
     * @param FilenameExtension 文件后缀
     * @return String
     */
    public static String getcontentType(String FilenameExtension) {
        if (FilenameExtension.equalsIgnoreCase(".bmp")) {
            return "image/bmp";
        }
        if (FilenameExtension.equalsIgnoreCase(".gif")) {
            return "image/gif";
        }
        if (FilenameExtension.equalsIgnoreCase(".jpeg") || FilenameExtension.equalsIgnoreCase(".jpg")
                || FilenameExtension.equalsIgnoreCase(".png")) {
            return "image/jpeg";
        }
        if (FilenameExtension.equalsIgnoreCase(".html")) {
            return "text/html";
        }
        if (FilenameExtension.equalsIgnoreCase(".txt")) {
            return "text/plain";
        }
        if (FilenameExtension.equalsIgnoreCase(".vsd")) {
            return "application/vnd.visio";
        }
        if (FilenameExtension.equalsIgnoreCase(".pptx") || FilenameExtension.equalsIgnoreCase(".ppt")) {
            return "application/vnd.ms-powerpoint";
        }
        if (FilenameExtension.equalsIgnoreCase(".docx") || FilenameExtension.equalsIgnoreCase(".doc")) {
            return "application/msword";
        }
        if (FilenameExtension.equalsIgnoreCase(".xml")) {
            return "text/xml";
        }
        return "image/jpeg";
    }

    /**
     * 获得url链接
     *
     * @param key
     * @return
     */
    public String getUrl(String key) {
        // 设置URL过期时间为10年 3600l* 1000*24*365*10
        Date expiration = new Date(new Date().getTime() + 3600l * 1000 * 24 * 365 * 10);
        // 生成URL
        // URL url = ossClient.generatePresignedUrl(bucketName, key,
        // expiration);
        URL url = ossClient.generatePresignedUrl(bucketName, key, expiration);
        if (url != null) {
            return String.valueOf(url.getProtocol()+"://"+url.getHost()+"/"+url.getPath());
        }
        return null;
    }

    public static void main(String[] args) {
        OSSClientUtil ossClientUtil = new OSSClientUtil();
        String url = ossClientUtil.getImgUrl("1554707995751.jpg");
        System.out.println(url);
    }
}